MRFIC1804. The MRFIC Line SEMICONDUCTOR TECHNICAL DATA

Transcription

1 SEMICONDUCTOR TECHNICAL DATA Order this document by /D The MRFIC Line Designed primarily for use in DECT, Japan Personal Handy Phone (JPHP), and other wireless Personal Communication Systems (PCS) applications. The includes a low noise amplifier and downmixer in a low-cost SOIC-6 package. The integrated circuit requires minimal off-chip matching while allowing for the maximum in flexibility and efficiency. The mixer is optimized for low side injection and offers reasonable intercept point as well as high efficiency and db of conversion gain. Image filtering is implemented off-chip to allow maximum flexibility. With both TX and RX enable pins low, the device is in standby mode and draws less than 0. ma. Together with the rest of the MRFIC80X series, this GaAs IC family offers the complete transmit and receive functions, less LO and filters, needed for a typical.8 GHz cordless telephone. Usable Frequency Range =. to. GHz db Gain,. db Noise Figure LNA db Gain, db Noise Figure Mixer 0.9 db Mixer Input Intercept Point Simple LO/IF Off-Chip Matching for Maximum Flexibility Low Power Consumption = mw (Typ) Single Bias Supply =.7 to. V Low LO Power Requirement = dbm (Typ) Low Cost Surface Mount Plastic Package Available in Tape and Reel by Adding R Suffix to Part Number. R Suffix =,00 Units per 6 mm, inch Reel. Device Marking = M80.8 GHz LOW NOISE AMPLIFIER AND DOWNMIXER GaAs MONOLITHIC INTEGRATED CIRCUIT CASE 7B-0 (SO 6) 6 IF OUT/ RF IN LO IN MIXER LNA OUT 6 LNA IN RX EN 7 8 LNA 0 9 Pin Connections and Functional Block Diagram REV MOTOROLA Motorola, Inc. 99 RF DEVICE DATA

2 MAXIMUM RATINGS (TA = C unless otherwise noted) Rating Symbol Limit Unit Supply Voltage Vdc LNA Input Power (Standby Mode) LNAin 0 dbm LO Input Power PLO 0 dbm Receive Enable Voltage RX EN Vdc Storage Temperature Range Tstg 6 to +0 C Operating Ambient Temperature TA 0 to + 8 C RECOMMENDED OPERATING RANGES Parameter Symbol Value Unit RF Input Frequency frf.8 to.9 GHz Mixer LO Frequency flo. to.9 GHz IF Output Frequency fif 70 to MHz Supply Voltage.7 to. Vdc Receive Enable Voltage RX EN.7 to. Vdc ELECTRICAL CHARACTERISTICS ( = V, TA = C, LO = 790 dbm, RF =.9 GHz, RX EN = V) Characteristic Min Typ Max Unit LNA Gain db LNA Noise Figure. db LNA Input rd Order Intercept dbm Mixer Conversion Gain (into 0 Ω) db Mixer Noise Figure db Mixer Input rd Order Intercept 0.9 dbm Downconverter Gain (Less Image Filter Loss) 6 db Supply Current, RX Mode (RX EN = V, LOoff) 7 0 ma Standby Mode Current (RX EN = 0 V, LO off) 0. ma C IF OUT LO IN LNA IN L C L C L C C pf (0 MHz) or 7. pf (0 MHz) C 0.8 pf C, C 00 pf C 000 pf L 8 nh (0 MHz) or nh (0 MHz) L 8. nh L, L.0 nh (Microstrip) C L MIXER IN LNA OUT RX EN Figure. Applications Circuit Configuration (for 0 MHz and 0 MHz IF)

3 S S S S Freq (GHz) Mag Angle Mag Angle Mag Angle Mag Angle Table. LNA S Parameters.0 nh IF OUT 00 pf Figure. Equivalent IF Output Circuit

4 TYPICAL CHARACTERISTICS ( = V) frf = 900 MHz flo = 790 MHz Conversion Gain db 0 6 db COMPRESSION (db) G, GAIN (db) 6.7 Gain.6. NF... NF, NOISE FIGURE (db) T, TEMPERATURE ( C) f, FREQUENCY (GHz) Figure. Downconverter Conversion Gain (less Image Filter) and db Compression versus Temperature Figure. LNA Gain and Noise Figure versus Frequency Conversion Gain db db COMPRESSION POINT (dbm) fif = 0 MHz fif = 0 MHz frf = 900 MHz frf = 900 MHz flo = 790 MHz flo = 790 MHz PRF = 0 dbm T, TEMPERATURE ( C) PLO, LO POWER (dbm) Figure. Mixer Conversion Gain and db Compression versus Temperature Figure 6. Mixer RF to IF Conversion Gain versus LO Power 6 frf = flo IF PRF = 0 dbm 0 MHz fif = 0 MHz LO FEED THROUGH (dbm) 7 9 fif = 0 MHz frf = 900 MHz PLO = dbm frf, RF FREQUENCY (GHz) f, FREQUENCY (GHz) Figure 7. Mixer RF to IF Conversion Gain versus RF Frequency Figure 8. Mixer LO to IF Feed Through versus RF Frequency

5 DESIGN AND APPLICATIONS INFORMATION The consists of a two stage GaAs MESFET low noise amplifier and a single ended MESFET mixer. The LNA design conserves bias current through stacking of the two FETs, thus reusing the current. The mixer consists of a common gate stage driving a common source stage with the IF output being the drain of the common source stage shunted with pf. The LNA output and mixer input have been separated to allow the addition of an external image filter. Such a filter, usually ceramic, is useful in improving the mixer noise figure and third order intercept performance. It also provides LO rejection to reduce the amount of LO power which may leak to the antenna. Alternatively, image trapping can be implemented at the LNA input or output with discrete or distributed components. The design has been optimized for application in the PCS bands around.9 GHz but is usable from around. GHz to. GHz. For applications at.9 GHz and IFs of 0 MHz or 0 MHz, the circuit shown in Figure can be used. This circuit was used to derive the characterization data shown in Figures through 8. For other IF frequencies in the 00 MHz to 0 MHz range, use the IF equivalent circuit shown in Figure for matching network design. As can be seen in the characterization curves, performance appears to degrade above about.8 GHz. This is partially a function of the circuit shown in Figure and can be improved, first, by adjusting the LO input match, second, by matching LNA input and and the mixer input off chip. As with all RF circuits, layout is important. Ground vias must be close to the component or lead to be grounded and vias must be plentiful. RF signal lines should be controlled impedance such as microstrip. Bypassing of power supply leads as shown in Figure is essential to avoid oscillation of the circuits. EVALUATION BOARDS Evaluation boards are available for RF Monolithic Integrated Circuits by adding a TF suffix to the device type. For a complete list of currently available boards and ones in development for newly introduced poduct, please contact your local Motorola Distributor or Sales Office.

6 PACKAGE DIMENSIONS G A B P 8 PL 0. (0.00) M B S NOTES:. DIMENSIONING AND TOLERANCING PER ANSI Y.M, 98.. CONTROLLING DIMENSION: MILLIMETER.. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION.. MAXIMUM MOLD PROTRUSION 0. (0.006) PER SIDE.. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.7 (0.00) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. T SEATING PLANE K C D 6 PL 0. (0.00) M T B S A S M R X J F MILLIMETERS INCHES DIM MIN MAX MIN MAX A B C D F G.7 BSC 0.00 BSC J K M P R CASE 7B 0 ISSUE J Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters, including Typicals must be validated for each customer application by customer s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA / EUROPE: Motorola Literature Distribution; JAPAN: Nippon Motorola Ltd.; Tatsumi SPD JLDC, Toshikatsu Otsuki, P.O. Box 09; Phoenix, Arizona F Seibu Butsuryu Center, Tatsumi Koto Ku, Tokyo, Japan. 0 8 MFAX: RMFAX0@ .sps.mot.com TOUCHTONE (60) 6609 HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, INTERNET: NET.com Ting Kok Road, Tai Po, N.T., Hong Kong MOTOROLA RF DEVICE /D DATA

7 This datasheet has been download from: Datasheets for electronics components.